CN201584643U - Laser anti-reflection device - Google Patents
Laser anti-reflection device Download PDFInfo
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- CN201584643U CN201584643U CN2009202614996U CN200920261499U CN201584643U CN 201584643 U CN201584643 U CN 201584643U CN 2009202614996 U CN2009202614996 U CN 2009202614996U CN 200920261499 U CN200920261499 U CN 200920261499U CN 201584643 U CN201584643 U CN 201584643U
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- laser
- eyeglass
- antireflection
- polarization
- reflection
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Abstract
The utility model relates to a laser anti-reflection device, which comprises a light path box type main body, a polarization reflection lens set and an anti-reflection lens, wherein the polarization reflection lens set and the anti-reflection lens are respectively fixed on the light path box type main body. Due to disposing an anti-reflection lens combination in front of a laser, the laser anti-reflection device not only guarantees normal application of laser beams, but also absorbs light beams reflected from a work surface, prevents the light beams from entering the laser to damage the internal structure of the laser, protects safety of the laser and laser outputting stability of the laser well, greatly increases property of laser gas, reduces maintenance cost and time, decreases affection on processing and application, and leads the laser to be adopted better during processing. Simultaneously, the laser anti-reflection device utilizes the light path box type main body to fix lenses, ensures sealing property, safety and reliability during light beam transmitting process, reduces error during lens adjustment, is simple, flexible and high-efficient during mounting and assembling, and brings effective convenience.
Description
[technical field]
The utility model relates to a kind of laser antireflection device, relates in particular to a kind of antireflection device of high power gas laser.
[background technology]
High power gas laser has purposes widely at industry fields such as cutting, welding, claddings, especially in the cutting field, has occupied the application market more than 85% especially.High power gas laser is in the process of processing, and the sheet material situation of facing high reflectance is more and more.
The tradition high power gas laser is not all installed the antireflection device, in the course of processing of height reflection sheet material, can produce very strong laser-bounce, can cause badly damaged to lathe light path and laser resonant cavity.Because this damage in intra resonant cavity, needs to expend lot of manpower and material resources in the process of maintenance, the cycle is grown and can not thoroughly solve.
Simultaneously, strong laser-bounce causes phenomenons such as laser power decline, laser power instability, laser beam pattern change, and produces very large influence to using, and causes production line to stop production.
[utility model content]
In view of this, be necessary laser to be caused the problem of damaging and influencing the laser processed and applied, propose a kind of antireflection device that can guarantee the laser of laser normal use at producing strong laser-bounce in the above-mentioned processed and applied process.
A kind of laser antireflection device, it is characterized in that: comprise the box main body of light path, reflection of polarization eyeglass group, antireflection eyeglass, described reflection of polarization eyeglass group and antireflection eyeglass are separately fixed on the box main body of described light path, described antireflection eyeglass is arranged on front end according to light path, and described reflection of polarization eyeglass is arranged on the rear end of described antireflection eyeglass according to light path.
Preferably, further comprise the expansion bundle shaping lens set that is arranged between described antireflection eyeglass and the described reflection of polarization eyeglass group.
Preferably, described expansion bundle shaping lens set is convex reflecting mirror and concave mirror.
Preferably, incident beam is vertical with the light beam polarization direction that laser sends with the plane that outgoing beam forms on the described antireflection eyeglass.
Preferably, the box main body of described light path has the mirror chamber, and described antireflection eyeglass and described reflection of polarization eyeglass group are fixed in the described mirror chamber.
Preferably, the box main body of described light path also is provided with and regulates the angle of eyeglass on the mirror chamber and the mechanical structure of position.
Preferably, described reflection of polarization eyeglass group is circular polarization eyeglass and zero phase skew eyeglass.
Preferably, described circular polarization reflecting optics becomes space 45 degree with incident beam.
Above-mentioned laser antireflection device; antireflection eyeglass combination is set before laser not only to have been guaranteed the normal use of laser beam but also the light beam of working surface reflected back had been absorbed; make it can not enter the internal structure that laser damages laser; the safety of laser and the stability of laser output laser have well been protected; improved the performance of laser gas greatly; reduced the cost and the time of safeguarding, reduced influence, made the laser work in-process obtain better application processed and applied.
Simultaneously, above-mentioned laser antireflection device adopts the box main body of light path that eyeglass is fixed, sealing, fail safe and the reliability of beam propagation process had both been guaranteed, error when reducing the eyeglass adjusting again, make this device simple when assembling is installed, flexible, efficient, effective facility is provided for on-the-spot Installation and Debugging.
[description of drawings]
Fig. 1 is the structure chart of the laser antireflection device of the utility model one better embodiment.
Fig. 2 is the schematic diagram of principle of the laser antireflection device of the utility model one better embodiment.
[embodiment]
Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by embodiment of the present utility model is described in detail.
Laser antireflection device comprises the box main body of light path and is installed in antireflection eyeglass on the box main body of light path, expands bundle shaping lens set and reflection of polarization eyeglass group.
The antireflection eyeglass receives the incident beam that laser sends, for being reflected into irradiating light beam to greatest extent, make incident beam vertical with the formed plane of folded light beam (S polarization) on laser output polarisation of light direction and the antireflection eyeglass, incident beam is carried out selective reflecting, folded light beam is sent to expands bundle shaping lens set.
Expand the folded light beam of bundle shaping eyeglass group of received, send reflection of polarization eyeglass group to after expanding the bundle shaping from the antireflection eyeglass.
Reflection of polarization eyeglass group of received is from the light beam of beam expanding lens sheet group, and becomes space 45 degree to be provided with light beam, by the phase delay effect light beam become circularly polarized light beam by linearly polarized light beam, and adjusts the outgoing position of light beam.
The box main body of light path has the mirror chamber, the mirror chamber is fixed corresponding eyeglass according to light path, guarantee sealing, fail safe and reliability in the beam propagation process, regulate angle and the position of eyeglass on the mirror chamber by mechanical structure simultaneously, the error when reducing the eyeglass adjusting.
Arrive the rapidoprint surface behind the light beam process laser antireflection device that laser sends and be used for normal processed and applied, the light beam of returning from the rapidoprint surface reflection enters laser antireflection device simultaneously, arrives the antireflection eyeglass along light path.The antireflection eyeglass has the function of the specific direction light beam being carried out absorption loss, thereby the light beam that reflects is carried out absorption loss, makes light beam can not enter laser, and the protection laser is not damaged.
Below in conjunction with specific embodiment above-mentioned laser antireflection device is set forth.
Fig. 1 is the structure chart of the laser antireflection device of the utility model one better embodiment.Laser antireflection device relates to a kind of antireflection device of suitable high power gas laser, and it comprises: the box main body 160 of light path, the antireflection eyeglass 110, convex reflecting mirror 120, concave mirror 130, circular polarization reflecting optics 140 and the zero phase that are fixed on the box main body 160 of this light path are offset reflecting optics 150.In the present embodiment, the expansion bundle shaping lens set of laser antireflection device comprises convex reflecting mirror 120 and concave mirror 130, and reflection of polarization eyeglass group comprises circular polarization reflecting optics 140 and zero phase skew reflecting optics 150.
Light beam from laser sends at first incides on the antireflection eyeglass 110.Antireflection eyeglass 110 makes the polarization direction of Laser Output Beam vertical with the formed plane of incident beam and folded light beam, and incident beam is carried out selective reflecting, and folded light beam is to convex reflecting mirror sheet 120.The folded light beam of 120 pairs of incidents of convex reflecting mirror sheet sends concave reflection eyeglass 130 to after expanding bundle.130 pairs of light beams of concave reflection eyeglass send circular polarization reflecting optics 140 to after contracting and restrainting.Circular polarization reflecting optics 140 becomes space 45 degree to be provided with light beam, by phase delay, send zero phase skew reflecting optics 150 to after light beam become circularly polarized light beam by linearly polarized light beam.Zero phase skew reflecting optics 150 is adjusted the outgoing position of light beam, with the light beam outgoing, the light beam work in-process is normally used.
Fig. 2 is the schematic diagram of Fig. 1 laser antireflection device.The light beam of laser 210 outgoing is vertical polarization, by adjusting through expansion bundle shaping eyeglass 240 and expansion bundle shaping eyeglass 250 again behind reflecting optics 110, convex reflecting mirror 120, concave mirror 130, circular polarization reflecting optics 140 and the zero phase skew reflecting optics 150 of laser antireflection device 220, focus on by focus lamp 260 at last, arrive working surface 270 and carry out normal processed and applied.
The folded light beam 280 that reflects from working surface 270 arrives antireflection eyeglass 110 backs by antireflection eyeglass 110 absorption losss along light path simultaneously, thereby makes it can not enter laser 210.
Above-mentioned laser antireflection device; antireflection eyeglass combination is set before laser not only to have been guaranteed the normal use of laser beam but also the light beam of working surface reflected back had been absorbed; make it can not enter the internal structure that laser damages laser; the safety of laser and the stability of laser output laser have well been protected; improved the performance of laser gas greatly; reduced the cost and the time of safeguarding, reduced influence, made the laser work in-process obtain better application processed and applied.
Simultaneously, above-mentioned laser antireflection device adopts the box main body of light path that eyeglass is fixed, sealing, fail safe and the reliability of beam propagation process had both been guaranteed, error when reducing the eyeglass adjusting again, make this device simple when assembling is installed, flexible, efficient, effective facility is provided for on-the-spot Installation and Debugging.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (8)
1. laser antireflection device, it is characterized in that: comprise the box main body of light path, reflection of polarization eyeglass group, antireflection eyeglass, described reflection of polarization eyeglass group and antireflection eyeglass are separately fixed on the box main body of described light path, described antireflection eyeglass is arranged on front end according to light path, and described reflection of polarization eyeglass is arranged on the rear end of described antireflection eyeglass according to light path.
2. laser antireflection device according to claim 1 is characterized in that: further comprise the expansion bundle shaping lens set that is arranged between described antireflection eyeglass and the described reflection of polarization eyeglass group.
3. laser antireflection device according to claim 2 is characterized in that: described expansion bundle shaping lens set is convex reflecting mirror and concave mirror.
4. laser antireflection device according to claim 1 is characterized in that: incident beam is vertical with the light beam polarization direction that laser sends with the plane that outgoing beam forms on the described antireflection eyeglass.
5. laser antireflection device according to claim 1 is characterized in that: the box main body of described light path has the mirror chamber, and described antireflection eyeglass and described reflection of polarization eyeglass group are fixed in the described mirror chamber.
6. laser antireflection device according to claim 5 is characterized in that: the box main body of described light path also is provided with regulates the angle of eyeglass on the mirror chamber and the mechanical structure of position.
7. according to the laser antireflection device shown in the claim 1, it is characterized in that: described reflection of polarization eyeglass group is circular polarization eyeglass and zero phase skew eyeglass.
8. according to the laser antireflection device shown in the claim 7, it is characterized in that: described circular polarization reflecting optics becomes space 45 degree with incident beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202614996U CN201584643U (en) | 2009-12-14 | 2009-12-14 | Laser anti-reflection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202614996U CN201584643U (en) | 2009-12-14 | 2009-12-14 | Laser anti-reflection device |
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| Publication Number | Publication Date |
|---|---|
| CN201584643U true CN201584643U (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202614996U Expired - Fee Related CN201584643U (en) | 2009-12-14 | 2009-12-14 | Laser anti-reflection device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692717A (en) * | 2011-03-23 | 2012-09-26 | 上海三鑫科技发展有限公司 | Optical engine employing polarization reflector |
| CN103567631A (en) * | 2013-11-15 | 2014-02-12 | 深圳市大族激光科技股份有限公司 | Optical isolation system and optical isolator |
| CN103592775A (en) * | 2013-11-15 | 2014-02-19 | 深圳市大族激光科技股份有限公司 | Optical isolation system and optical isolator |
| CN104416284A (en) * | 2013-08-30 | 2015-03-18 | 大族激光科技产业集团股份有限公司 | Optical isolator and laser processing system |
-
2009
- 2009-12-14 CN CN2009202614996U patent/CN201584643U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692717A (en) * | 2011-03-23 | 2012-09-26 | 上海三鑫科技发展有限公司 | Optical engine employing polarization reflector |
| CN104416284A (en) * | 2013-08-30 | 2015-03-18 | 大族激光科技产业集团股份有限公司 | Optical isolator and laser processing system |
| CN104416284B (en) * | 2013-08-30 | 2016-08-10 | 大族激光科技产业集团股份有限公司 | A kind of laser-processing system |
| CN103567631A (en) * | 2013-11-15 | 2014-02-12 | 深圳市大族激光科技股份有限公司 | Optical isolation system and optical isolator |
| CN103592775A (en) * | 2013-11-15 | 2014-02-19 | 深圳市大族激光科技股份有限公司 | Optical isolation system and optical isolator |
| CN103567631B (en) * | 2013-11-15 | 2015-09-09 | 大族激光科技产业集团股份有限公司 | Optical isolation systems and optical isolator |
| CN103592775B (en) * | 2013-11-15 | 2016-07-06 | 大族激光科技产业集团股份有限公司 | Optical isolator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20171214 |